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STatiana [176]
2 years ago
6

Dan bought 6 new baseball trading cards to add to his collection. The next day, his dog ate half of his collection. There are no

w only 28 cards left. How many cards did Dan start with? Giving brainliest!
Mathematics
2 answers:
Elina [12.6K]2 years ago
4 0

Answer:

50

Step-by-step explanation:

28 x 2 = 56

56 - 6 = 50

Vika [28.1K]2 years ago
3 0

Answer:

50 cards

Step-by-step explanation:

28*2= 56

56-6=50

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Rewrite as a whole number.Rewrite as a whole number.Rewrite as a whole number.Rewrite as a whole number.
QveST [7]

Answer 7

Explanation

you need to divide 63 by 9 to get 7

3 0
2 years ago
Which are the solutions of x2 = –5x + 8?
Nostrana [21]

Answer:

As exact answers:

x=\frac{-5-\sqrt{57} }{2}  and  x=\frac{-5+\sqrt{57} }{2}

As decimal answers:

x = -6.2749172 ≈-6.3

x = 1.27491722 ≈  1.3

Step-by-step explanation:

For quadratic equations, you can use the quadratic formula. Rearrange the equation to standard from, which is ax² + bx + c = 0.

x² = –5x + 8

x² + 5x - 8 = 0

State the values for "a", "b" and "c",

a = 1; b = 5; c = -8

x=\frac{-b±\sqrt{b^{2}-4ac} }{2a}            (Ignore the Â, it's a formatting error)

x=\frac{-5±\sqrt{5^{2}-4(1)(-8)} }{2(1)}           Simplify

x=\frac{-5±\sqrt{25-(-32)} }{2}               Two negatives make a positive

x=\frac{-5±\sqrt{57} }{2}  

Split the equation at the ± for plus and minus:

x=\frac{-5+\sqrt{57} }{2}  = 1.27491722 ≈ 1.3

x=\frac{-5-\sqrt{57} }{2}  = -6.2749172 ≈ -6.3

Therefore the solutions are 1.3 and -6.3.

6 0
3 years ago
6. What property is being shown? 5 3 ∙ 1 = 5 3
Natali5045456 [20]
The Identity Property of Multiplication.

This states that anything you multiply by 1 will always be that number.
4 0
3 years ago
Read 2 more answers
Please help meee!!! It's urgent!!!<br><br> What is the equation of the line shown in this graph?
Rudiy27

Answer:

Vertical Lines

Similarly, in the graph of a vertical line, x only takes one value. Thus, the equation for a vertical line is x = a, where a is the value that x takes. Since x always takes the value 2 = , the equation for the line is x = .

Step-by-step explanation:

8 0
3 years ago
Enguun earns $17 per hour tutoring student-athletes at Brooklyn University.
Juliette [100K]

Answer:

a. Earnings of Enguun for 12 hours this month (G)

G = 204 dollars

b. Earnings of Enguun for  19.5 hours last month (G)

G = 331.5 dollars

Step-by-step explanation:

Nomenclature

G: Total earnings of Enguun in dollars

E: Enguun's earnings for 1 hour of tutoring (dollars/hour)

n: number of hours that Enguun tutored per month (hour/month)

Formula

G = E*n

E = $17 per hour = 17 dollars/hour

Problem development

a. Earnings of Enguun for 12 hours this month

n = 12 hours

G = E*n

G= 17\frac{dollars}{hour} * 12 hour  : We eliminate hours

G = 204 dollars

b. Earnings of Enguun for 19.5 hours last month

G = E*n

G = 17 * 19.5

G = 331.5 dollars

7 0
3 years ago
Read 2 more answers
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